benjamin



l(No Model.)

F. M. WILDER 8v G. H. BENJAMIN.

FLEXIBLE PIPING.

Patented Jan UNITED STATES PATENT OEEICE.

FRANCIS M.y WILDEB AND GEORGE H. BENJAMIN, OF NEW YORK, N.

FLEXIBLE PIPING.

SPECIFICATION forming part of Lettere. Patent No. 376,401, dated January10, 1888.

Application led July 19, i887. Serial No. 244,712. (No model.)

To all whom 112? may concern.-

Be it known that we, FEANcIs MILTON WIEDER and GEORGE H. BENJAMIN, ofthe city, county', and State of New York, have invented certain new anduseful Improvements in Flexible Piping, of which the following is aspecification.

Our invention relates to iieXible piping, such as is designed to carrysteam or other heated fluids or gases, and what will not be readilyacted upon by the iuid or gases, and at the same time present a certaindegree of mobility or iiexibility when in use.

Our invention has special reference to hose or piping adapted to beemployed between railway-cars for transmitting steam or other heatedgases. y

In the aecompan ying drawings, which illustrate our invention, similarletters of reference indicate like parts.

Figure 1 is an elevation of the main body of the piping and the variouscoverings superposed thereon. Fig. 2 isa longitudinal verti cal section.Fig. 3 is atransverse section taken on the line X X of Fig. 2. Fig. 4 isa transverse section taken on the line Y Y of Fig. 2.'

In the drawings, A indicates-the main body of the piping, made up ofindependent sections of spun or cast metal or other suitable material.Each section is so made that one end, B, is slightly smaller than theopposite end, C, whereby the end B of one section will t into the end Cof the nextsection.

The sectional View, Fig.2, shows the sections A to have theirsurfaceformed convex' at the ends and concave in the center. By soarranging the sections considerable mobility may be obtained between theindependent sections withoutseparating them or allowing the egress ofthe body transmitted. y

We do not wish to limit ourselves to theexact shape of the sections asshown, as the ball-andsoeket effect may be obtained in very manydifferent way's; neither do we wish to limit ourquired purpose, theobject of which is to form a packing-covering which will serve to lagthe piping. Over this lagging D is indicated a layer of india-rubber orother material impervious to the passage of steam or gases. Vulcanite,Okonite, vulcanized'iiber, or like materials will answer a similarpurpose. The external surface of the pipe we prefer to envelop with-acovering of woven cotton, F, such a covering as is usually employed forcovering hosepipe, and which, when properly applied, will stand a veryhigh internal bursting pressure.

We are aware that a hose made of a number of independent sectionsarticulating with each other and contained within a covering orcontaining-tube has heretofore been made, and Such we do not broadlyclaim.

We claim as our inventionl. rIhe combination, in a fiexible piping, ofthe articulating section A, the non-combustible covering D, thelimpervious covering E, and the outer covering, F.

2. The combination, in a iiexible piping, of the sections A, the ends ofwhich, C B, are of different diameters, the non-combustible coveringD,the impervious covering E, and the outer covering, F, all substantiallyas described.

In witness whereof we have hereunto set our hands the 18th day of July,1887.

F. M. WILDER. GEO.y H. BENJAMIN.

Witnesses:

JAs. F. FOGEETY, IEA R. STEWAED.

